Fig. 3.
The total number of preoperative blood orders placed on the day of surgery (same-day blood sample orders) is shown for each month in the study period. Although the total number of same-day blood orders did not change over time, the number of same-day preoperative blood orders considered to be unnecessary decreased, especially after audits were conducted to inform providers when preoperative blood orders were considered to be unnecessary. MSBOS = maximum surgical blood order schedule.